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A297719 Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s. 1

%I

%S 37,2651,68919,2699832,107787351,4021047904,154327332017,

%T 5920531350715,226188909640209,8657932603026022,331360189636829166,

%U 12678860316903190032,485194134262201742340,18567112995250259829761

%N Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s.

%C Column 7 of A297720.

%H R. H. Hardin, <a href="/A297719/b297719.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..0..0..0..0..1..0..0. .1..1..0..0..0..0..0. .1..0..0..1..0..0..0

%e ..1..0..0..1..0..0..0. .0..1..0..0..0..1..1. .0..1..1..1..0..0..0

%e ..1..1..0..0..1..1..0. .0..0..1..0..0..1..0. .0..1..0..0..1..1..1

%Y Cf. A297720.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 04 2018

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Last modified January 26 23:52 EST 2022. Contains 350601 sequences. (Running on oeis4.)